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Reed Valves and Petals

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Carburetor kit Derestrictor kit Intake gasket Intake kit Intake spacer Reed petals Reed valve
Brand
Athena Barikit CBE Derbi Doppler Easyboost Italkit KRM Malossi Metrakit Moose Racing MotoForce MotoForce Racing MVT MXS Racing Naraku Peugeot Piaggio Polini Schmitt Stage6 Stage6 R/T Standard Parts V Force Voca Racing Yamaha
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MotoForce
Reed Valve MotoForce Derbi
Article no.: MF35.19301

Reed Valve MotoForce Derbi

9,60 €
In stock
MotoForce
Reed Valve Motoforce Minarelli vertical
Article no.: MF35.16800

Reed Valve Motoforce Minarelli vertical

6,60 €
In stock
RRP
7,30 €
-10% Discount
MotoForce
Reed Valve Motoforce Piaggio / Gilera / Vespa / Derbi / Aprilia
Article no.: MF35.14000

Reed Valve Motoforce Piaggio / Gilera / Vespa / Derbi / Aprilia

13,00 €
In stock
MotoForce
Reed Valve MotoForce AM6
Article no.: MF35.18805

Reed Valve MotoForce AM6

13,00 €
In stock
RRP
16,50 €
-21% Discount
Sale
MotoForce
Reed Valve Motoforce Yamaha PW 50
Article no.: MF35.19901

Reed Valve Motoforce Yamaha PW 50

3,90 €
In stock
RRP
4,50 €
-13% Discount
MotoForce
Reed Valve Motoforce Puch Maxi / Peugeot 103
Article no.: MF35.13201

Reed Valve Motoforce Puch Maxi / Peugeot 103

5,80 €
In stock
RRP
5,90 €
-2% Discount
Stage6
Reed Valve V-Force 4 Stage6 Honda CR85 / Derbi
Article no.: S6-3219004

Reed Valve V-Force 4 Stage6 Honda CR85 / Derbi

172,00 €
In stock
RRP
221,00 €
-22% Discount
Sale
Stage6
Reed Valve V-Force 3 Stage6 KX85
Article no.: S6-3219003

Reed Valve V-Force 3 Stage6 KX85

149,00 €
In stock
RRP
228,00 €
-35% Discount
Sale
Stage6
VForce 3 Reed valve AM6 Stage6
Article no.: S6-3219001

VForce 3 Reed valve AM6 Stage6

85,00 €
In stock
RRP
110,00 €
-23% Discount
Sale
Stage6
Carburetor Kit Stage6 PWK 21mm Minarelli vertical
Article no.: MS-PKMADMI1

Carburetor Kit Stage6 PWK 21mm Minarelli vertical

207,90 €
In stock
231,00 €
-10% Set-Rabatt
Stage6
Intake Kit Stage6 MK2 Oversize 24/35MM PHBG / PWK Minarelli vertical
Article no.: S6-3216800

Intake Kit Stage6 MK2 Oversize 24/35MM PHBG / PWK Minarelli vertical

103,00 €
In stock
RRP
114,00 €
-10% Discount
Stage6
Reed Valve Stage6 Vforce 3 Piaggio 125 - 180
Article no.: S6-3219006

Reed Valve Stage6 Vforce 3 Piaggio 125 - 180

119,00 €
In stock
RRP
132,00 €
-10% Discount
Stage6
Reed Valve Stage6 VFORCE 3 Piaggio / Gilera / Vespa
Article no.: S6-3219002
1

Reed Valve Stage6 VFORCE 3 Piaggio / Gilera / Vespa

76,00 €
In stock
RRP
105,00 €
-28% Discount
Sale
Stage6
Reed Valve Stage6 Viton Minarelli horizontal
Article no.: S6-3219066/VT

Reed Valve Stage6 Viton Minarelli horizontal

65,00 €
In stock
RRP
72,00 €
-10% Discount
Stage6
Reed Valve Stage6 Viton Piaggio
Article no.: S6-3219040/VT

Reed Valve Stage6 Viton Piaggio

52,00 €
In stock
RRP
72,00 €
-28% Discount
Sale
Stage6
Reed Valve Stage6 MK2 Viton Minarelli vertical
Article no.: S6-3219069/VT

Reed Valve Stage6 MK2 Viton Minarelli vertical

42,00 €
In stock
RRP
46,50 €
-10% Discount
New
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 turquoise
Article no.: S6-3318809/TU

Reed Valve Spacer 10mm AM6 / Derbi Stage6 turquoise

17,00 €
In stock
RRP
27,00 €
-37% Discount
Sale
Stage6
Reed Valve Spacer 5mm AM6 / Derbi Stage6 purple
Article no.: S6-3318810/PU

Reed Valve Spacer 5mm AM6 / Derbi Stage6 purple

25,00 €
In stock
RRP
27,00 €
-7% Discount
Stage6
Reed Valve Spacer 5mm AM6 / Derbi Stage6 turquoise
Article no.: S6-3318810/TU

Reed Valve Spacer 5mm AM6 / Derbi Stage6 turquoise

16,00 €
In stock
RRP
27,00 €
-41% Discount
Sale
Stage6
Reed Valve Spacer 5° incline AM6 / Derbi Stage6 turquoise
Article no.: S6-3318811/TU

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 turquoise

17,00 €
In stock
RRP
26,00 €
-35% Discount
Sale
Stage6
Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Green
Article no.: S6-3318811/GR

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Green

17,00 €
In stock
RRP
26,00 €
-35% Discount
Sale
Stage6
Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Yellow
Article no.: S6-3318811/YE

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Yellow

16,00 €
In stock
RRP
26,00 €
-38% Discount
Sale
Stage6
Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Orange
Article no.: S6-3318811/OR

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Orange

24,00 €
In stock
RRP
26,00 €
-8% Discount
Stage6
Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Blue
Article no.: S6-3318811/BL

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Blue

16,00 €
In stock
RRP
26,00 €
-38% Discount
Sale
Stage6
Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Red
Article no.: S6-3318811/RE

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Red

19,00 €
In stock
RRP
26,00 €
-27% Discount
Sale
Stage6
Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Black
Article no.: S6-3318811/BK

Reed Valve Spacer 5° incline AM6 / Derbi Stage6 Black

24,00 €
In stock
RRP
26,00 €
-8% Discount
Stage6
Reed Valve Spacer 5mm AM6 / Derbi Stage6 Green
Article no.: S6-3318810/GR

Reed Valve Spacer 5mm AM6 / Derbi Stage6 Green

16,00 €
In stock
RRP
27,00 €
-41% Discount
Sale
Stage6
Reed Valve Spacer 5mm AM6 / Derbi Stage6 Yellow
Article no.: S6-3318810/YE

Reed Valve Spacer 5mm AM6 / Derbi Stage6 Yellow

16,00 €
In stock
RRP
27,00 €
-41% Discount
Sale
Stage6
Reed Valve Spacer 5mm AM6 / Derbi Stage6 Orange
Article no.: S6-3318810/OR

Reed Valve Spacer 5mm AM6 / Derbi Stage6 Orange

15,00 €
In stock
RRP
27,00 €
-44% Discount
Sale
Stage6
Reed Valve Spacer 5mm AM6 / Derbi Stage6 Blue
Article no.: S6-3318810/BL

Reed Valve Spacer 5mm AM6 / Derbi Stage6 Blue

25,00 €
In stock
RRP
27,00 €
-7% Discount
Stage6
Reed Valve Spacer 5mm AM6 / Derbi Stage6 Black
Article no.: S6-3318810/BK

Reed Valve Spacer 5mm AM6 / Derbi Stage6 Black

15,00 €
In stock
RRP
27,00 €
-44% Discount
Sale
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 Green
Article no.: S6-3318809/GR

Reed Valve Spacer 10mm AM6 / Derbi Stage6 Green

16,00 €
In stock
RRP
27,00 €
-41% Discount
Sale
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 Orange
Article no.: S6-3318809/OR

Reed Valve Spacer 10mm AM6 / Derbi Stage6 Orange

25,00 €
In stock
RRP
27,00 €
-7% Discount
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 Blue
Article no.: S6-3318809/BL

Reed Valve Spacer 10mm AM6 / Derbi Stage6 Blue

20,00 €
In stock
RRP
27,00 €
-26% Discount
Sale
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 Red
Article no.: S6-3318809/RE

Reed Valve Spacer 10mm AM6 / Derbi Stage6 Red

20,00 €
In stock
RRP
27,00 €
-26% Discount
Sale
Stage6
Reed Valve Spacer 10mm AM6 / Derbi Stage6 Black
Article no.: S6-3318809/BK

Reed Valve Spacer 10mm AM6 / Derbi Stage6 Black

25,00 €
In stock
RRP
27,00 €
-7% Discount
Stage6
Intake Kit Stage6 MK2 24/35mm PHBG / PWK Piaggio
Article no.: S6-3214000

Intake Kit Stage6 MK2 24/35mm PHBG / PWK Piaggio

84,00 €
In stock
RRP
116,00 €
-28% Discount
Sale
Stage6
Reed Valve Stage6 Viton Peugeot horizontal
Article no.: S6-3219078/VT
1

Reed Valve Stage6 Viton Peugeot horizontal

51,00 €
In stock
RRP
71,00 €
-28% Discount
Sale
Stage6
Reed Petal Carbon Stage6 Minarelli vertical
Article no.: S6-3219068ET01

Reed Petal Carbon Stage6 Minarelli vertical

9,20 €
In stock
RRP
11,50 €
-20% Discount
Sale
Stage6
Reed Valve Stage6 Puch Maxi / Peugeot 103
Article no.: S6-3219074

Reed Valve Stage6 Puch Maxi / Peugeot 103

13,50 €
In stock
RRP
17,00 €
-21% Discount
Sale
Stage6
Carbon Fiber Sheet 0,35mm Stage6 cut out
Article no.: S6-325001

Carbon Fiber Sheet 0,35mm Stage6 cut out

39,00 €
In stock
RRP
43,00 €
-9% Discount
Stage6
Intake Kit Stage6 MK2 Peugeot vertical
Article no.: S6-3217500
6

Intake Kit Stage6 MK2 Peugeot vertical

79,00 €
In stock
RRP
87,00 €
-9% Discount
Stage6
Reed Valve Stage6 R/T Viton AM6 / Derbi
Article no.: S6-3219088/VT

Reed Valve Stage6 R/T Viton AM6 / Derbi

65,00 €
In stock
RRP
72,00 €
-10% Discount
Stage6
Intake Kit Stage6 PWK 21mm Peugeot vertical
Article no.: S6-3917501

Intake Kit Stage6 PWK 21mm Peugeot vertical

186,30 €
In stock
207,00 €
-10% Set-Rabatt
Stage6
Intake Kit Stage6 PWK 21mm Piaggio 50 - 180cc
Article no.: S6-3914001

Intake Kit Stage6 PWK 21mm Piaggio 50 - 180cc

190,80 €
In stock
212,00 €
-10% Set-Rabatt
Stage6
Reed Valve Stage6 VFORCE 3 Minarelli horizontal
Article no.: S6-3219000

Reed Valve Stage6 VFORCE 3 Minarelli horizontal

90,00 €
In stock
RRP
100,00 €
-10% Discount
Stage6
Reed Valve Stage6 VForce 3i Honda CR85 / Derbi
Article no.: S6-3219005

Reed Valve Stage6 VForce 3i Honda CR85 / Derbi

139,00 €
In stock
RRP
221,00 €
-37% Discount
Sale
MXS Racing
Reed Valve Spacer MXS Racing 5mm Minarelli horizontal
Article no.: MXS-0801

Reed Valve Spacer MXS Racing 5mm Minarelli horizontal

16,00 €
In stock
RRP
20,50 €
-22% Discount
Sale
MXS Racing
Intake Kit MXS Racing HighFlow AW 40mm PWK Minarelli horizontal
Article no.: MXS-012

Intake Kit MXS Racing HighFlow AW 40mm PWK Minarelli horizontal

295,00 €
In stock
MXS Racing
Intake Kit Big Valve MXS Racing 35mm (PWK / VHST) + Stage6 reed valve Minarelli vertical
Article no.: MS-PKMMXS010/2

Intake Kit Big Valve MXS Racing 35mm (PWK / VHST) + Stage6 reed valve Minarelli vertical

120,60 €
In stock
RRP
133,00 €
-9% Discount
MXS Racing
Intake Kit Big Valve MXS Racing HighFlow 35mm PWK / VHST Minarelli vertical
Article no.: MS-PKMMXS010/1

Intake Kit Big Valve MXS Racing HighFlow 35mm PWK / VHST Minarelli vertical

146,30 €
In stock
154,00 €
-5% Set-Rabatt
Moose Racing
Gasket Kit reed valve Moose Racing RM 1991-2008 / YZ 125 1990-1994
Article no.: MRM56008301

Gasket Kit reed valve Moose Racing RM 1991-2008 / YZ 125 1990-1994

19,50 €
In stock
RRP
50,50 €
-61% Discount
Moose Racing
Spacer / Gasket Kit reed valve Moose Racing YZ 85
Article no.: MRM56006401

Spacer / Gasket Kit reed valve Moose Racing YZ 85

38,00 €
In stock
RRP
48,50 €
-22% Discount
Doppler
Reed Valve Spacer Doppler 5mm red Derbi / Minarelli AM6
Article no.: CGN494635

Reed Valve Spacer Doppler 5mm red Derbi / Minarelli AM6

15,00 €
In stock
Doppler
Reed Valve Spacer Doppler 5mm black Derbi / Minarelli AM6
Article no.: CGN494634

Reed Valve Spacer Doppler 5mm black Derbi / Minarelli AM6

13,00 €
In stock
RRP
15,00 €
-13% Discount
Sale
CBE
Stuffer Insert f. reed valve Bidalot G2B CBE d.25mm
Article no.: CBE-DIFF-G2B-25

Stuffer Insert f. reed valve Bidalot G2B CBE d.25mm

16,00 €
In stock
RRP
25,00 €
-36% Discount
Italkit
Reed Valve + Intake Manifold Italkit W-Force Aprilia RS125 / Rotax 122
Article no.: IKLC01125

Reed Valve + Intake Manifold Italkit W-Force Aprilia RS125 / Rotax 122

86,00 €
In stock
114,00 €
-25% Discount
Sale
Polini
Reed valve for carburettor Big Valve Kymco Sniper
Article no.: P213.0042

Reed valve for carburettor Big Valve Kymco Sniper

28,00 €
In stock
RRP
65,00 €
-57% Discount
Italkit
Reed Valve Italkit AM6
Article no.: IKLC122

Reed Valve Italkit AM6

33,50 €
In stock
Polini
Intake Kit Polini 23mm PHBG Piaggio APE 50ccm
Article no.: P215.0271

Intake Kit Polini 23mm PHBG Piaggio APE 50ccm

81,00 €
In stock
RRP
116,00 €
-30% Discount
Sale
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Reed valve

The reed valve is a component found only on 2-stroke engines. It controls cylinder filling and extends the usable RPM range of the engine. Without a reed valve, engines would be weaker at low RPM and would deliver power much more abruptly.

Well-known brands such as Moto Tassinari, Stage6, Italkit, Polini, or Malossi offer high-quality reed valves for the most common models.

Performance improvement via reed valve

A reed valve can improve performance across the entire RPM range, as the cylinder is filled more efficiently and a higher flow rate is possible.

The material and thickness of the reed petals (steel, fiberglass, carbon, epoxy composite) also influence behavior at low or high RPM. As a general rule:

  • Thicker = stiffer = less torque, but possible gains at high RPM
  • Thinner = more flexible = better acceleration, but losses at high RPM

It is recommended to test different options and select the setup that best suits the vehicle.

Reed valve spacers are also available, allowing the crankcase volume to be increased.

Choosing the right reed valve

When setting up an engine, especially on 50cc scooters and gear bikes, the reed valve should match the cylinder kit. The more powerful the cylinder, the greater the flow capacity required from the reed valve.

Many manufacturers offer so-called “big valve” kits for tuned scooters such as Yamaha Aerox or Piaggio Zip, where the original reed valve is very small.

On geared motorbikes with Minarelli AM6 or Derbi engines, installing a larger reed valve often requires modification of the crankcase. Please take this into account.

In the motocross segment, Moto Tassinari offers V-Force reed valves, which are easy to install and provide improved flow. The thickness of the reed blades is already optimized for many common models (KTM SX, Yamaha YZ, Honda CR, etc.).

To simplify installation, complete intake kits are also available, including intake manifold, reed valve, and additional components.

Replacement reed petals for cost-effective repair

The reed valve can be replaced entirely, but this is often not necessary. The reed petals, or reed blades, move very quickly and are subject to high loads. They should be replaced regularly when they are no longer sealing properly.

A wide range of reed petals made of carbon, fiberglass, or metal is available.

There are also carbon reed sheets, allowing you to cut reed petals to a desired size, for example for less common models.

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